#include <Eigen/Dense>
#include <iostream>

using namespace Eigen;
using namespace std;

int
main()
{
	ArrayXXf a(3, 3);
	ArrayXXf b(3, 3);
	a << 1, 2, 3, 4, 5, 6, 7, 8, 9;
	b << 1, 2, 3, 1, 2, 3, 1, 2, 3;

	// Adding two arrays
	cout << "a + b = " << endl << a + b << endl << endl;

	// Subtracting a scalar from an array
	cout << "a - 2 = " << endl << a - 2 << endl;
}
